diff mbox series

[for-7.2,v2,07/20] hw/ppc: set machine->fdt in xilinx_load_device_tree()

Message ID 20220805093948.82561-8-danielhb413@gmail.com
State New
Headers show
Series QMP/HMP: add 'dumpdtb' and 'info fdt' commands | expand

Commit Message

Daniel Henrique Barboza Aug. 5, 2022, 9:39 a.m. UTC 
This will enable support for 'dumpdtb' and 'info fdt' HMP commands for
the virtex_ml507 machine.

Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
 hw/ppc/virtex_ml507.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index 53b126ff48..ed1d37486d 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -45,6 +45,8 @@ 
 #include "hw/qdev-properties.h"
 #include "ppc405.h"
 
+#include <libfdt.h>
+
 #define EPAPR_MAGIC    (0x45504150)
 #define FLASH_SIZE     (16 * MiB)
 
@@ -153,6 +155,7 @@  static int xilinx_load_device_tree(hwaddr addr,
                                       hwaddr initrd_size,
                                       const char *kernel_cmdline)
 {
+    MachineState *machine = MACHINE(qdev_get_machine());
     char *path;
     int fdt_size;
     void *fdt = NULL;
@@ -197,7 +200,15 @@  static int xilinx_load_device_tree(hwaddr addr,
     if (r < 0)
         fprintf(stderr, "couldn't set /chosen/bootargs\n");
     cpu_physical_memory_write(addr, fdt, fdt_size);
-    g_free(fdt);
+
+    /*
+     * Update the machine->fdt pointer to enable support for
+     * 'dumpdtb' and 'info fdt' commands. Use fdt_pack() to
+     * shrink the blob size we're going to store.
+     */
+    fdt_pack(fdt);
+    machine->fdt = fdt;
+
     return fdt_size;
 }